Thread: Engine Whine?
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      06-28-2019, 05:05 PM   #6
drrust
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Drives: E90 M3 DCT Sedan
Join Date: Jun 2016
Location: Cincinnati

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When the breather valve is on the way out, it only stalls after a fill up. If it happens when you have less gas it maybe something else. The part isn't that pricey and the DIY isn't that hard. The main hiccup seems to be the hose on the back of the unit, but if you disconnect it you can have better access.

It will give you practice pulling off the plenum.
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